Apparatus for pressing and forming metal articles



June 27, 1933. T. M. .HIESTER 1,915,667

APPARATUS FOR PRESSING AND FORMING METAL ARTICLES Filed July 10, 1931 4 Sheets-Sheet 1 INVENTOR THEODORE M. HIESTER.

ATTORNEY June 27, 1933. T. M. HIESTER 1,915,667

APPARATUS FOR PRESSING AND FORMING METAL ARTICLES Filed July 10, 1931' 4 Sheets-Sheet 2 INVENTOR THEODORE M. H/ESTER.

5i fizz) ATTORNEY June27, 1933.

APPARATUS FOR PRESSING AND FORMING METAL ARTICLES Filed July 10, 1951 4' Sheets-Sheet 3 uuuuun 11% l f/ p I E 1 i Z a 4 INVENTOR msoaom: M. H/ESTER.

4 -,f& g

ATTORNEY June 27, 1933. 'r. M. HIE STER 1,915,557

APPARATUS FOR PRESSING AND FIORMING METAL ARTICLES Filed July 10, 1931 4 Sheets-Sheet 4 4 I INVENTOR THEODORE M. HIESTER.

ATTORNEY r or substantially so.

I nected to a toolipress as at and vertical movement. I

The pin 12, carried-by theguidlng head Patented June ,27, 1933 I 'rnnononn'n. nrnsrnnfor nay'romonro, ASSIGNQR 'rov UNITED AIRCRAFT rnonnors.

.rno., 'or*'DAYToN, 'onIo, A oouron-arron or onro APPARATUS FOR rREssIne Ann roRMinG METAL ARTICLES Application filed July 10',

My invention relates-to an apparatus for pressing and forming metal articles. 7

.Itis the object ofmy inventiontoprovide a rotating set of pressing and drawlng. fingers, which will engagewith the; surface of a sheetof metal to gradually draw it down into form while rotatably pressing it into the configuration desired,'thereby pressingz it transversely and drawing it down vertically,

In particular, it is my object to provide a form over which the metal is pressed and a guide of similar configuration for guiding the rocking, pressing and forming fingers.

- Referring to the drawings: I g I I Figure 1 is a side elevation of the head; Figure 2 is a similar view showing the head after drawingthe, metal down in position with the metal partially in section;

a Figure 3 is a verticalsection through the head;

Figure 4 is a top plan view thereof; Figure 5 is a bottom plan viewthereof.

Referring to the drawingsin detail, 1 is a supporting collar that is supported by the head 2 of a tool in a stationaryposition as to rotation, The collar is provided on its under sidewithan angularshoulder 3 retained by bolts 4,011" the head 1 forming a trackway for the flange 5,.to. support the guiding headGrotatably. 2

This head 6 is provided with a cylindrical passageway 7 havingitherein a bearing sleeve 7 8.in 'which reciprocates the tool head 9 hav ing an actuating stem 10 which maybe con- 11 for rotation extends into the slot 13 of the tool head,9 and causesthe guiding head and tool head to rotate together. Thetool head is provided with a collar having spaced ears 1 4: carryin pivots 15 for pivotally supporting the too arms 16, the upper ends of whichare guided by adjustable screws 17 engaging the surface 18 of the guiding head 6, which has a conical surface corresponding in angle to the conical surface 19 ofthe form 20 over which the metal is extruded and formed.

The upper ends of these arms are'zdrawn 931. Serial No. 549.860.

toward one another andcaused to have their interconnecting helical springs 21.

Each rocking. lever 16 has a nose 27 used for, pressing theimetal downwardly in an annular path and therebyv thinning it and drawln'g it as at 22 from the thickness shown at 23 upon the m 2s of the form 20.. V

, The original thickness of metalat '25'remains unchanged. Y This tool is so shaped as to have a smooth:- ingsurface 26 and a drawing'and pressing nose 27. 1 I

It'will be'understood that I desire to com prehend within my invention such modificastoppins 17 travel onlthe' surface 18 by the tions as may benecessary to adapt it tovarying conditions and uses.

Having thus fully described my invention, What I claim as new and desire to secure by Letters Patent, is: I

1 1. In combination, a stationary support, a cone-shaped guiding head, a rotating and reciprocating tool head in the guiding head,

and rocking tool members mounted on said tool head engagingwith and guided by said guiding head.

2. In combination, a stationary support, a

guiding head.

V 3. In combination, a stationary support, a guiding head, a rotating and reciprocating tool head in the guiding head, rocking tool members mounted on said tool headengaging with and guided by said guiding head, yielding means for maintaining said tool members in guiding engagement with the guiding head, and means of adjusting the extent to which said tool members approach to said guiding head.

4. In combination, means to'sup'port a guiding head, a reciprocating tool head in the guiding head, means to cause said tool head and guiding head to rotate "together, said guiding head having a guiding surface depending thereon, a plurality of rocking,

guiding head, a rotating and reciprocating gers .Ito .eng

' pressing and i formingfin gers, depending, be-

low said guiding head having their upper ends engagingltlherewith, and'yielding means a to cause said gers to engage with the guiding head to be guided thereby as the tool geag reciprocates relative te -th guiding ea a r a 5. In combination, means to support .ro-I

tatably a guiding head; a' reciprocating' tool head means to cause said'tool hea'd'and guid -ing head to rotate together "said guiding face dependin I head having a guiding sur 7 thereon, a plurality of rocking, pressing an forming fingers depending'below said gu drl ing head havin their upper ends engaging therewith, yiel ing means-tocause said fin v -withthe guidingheadfltobe guided there y ascthe tool headreeiprocates relative to the'guiding head', andaiorm'eupa sheet lof' metal over which said nietalis guided; fornledand 6. InIcombination; a pluralityof "forming and ..:fingers, aform over which metal'is formed and ressedbysaid fingers, means. for-"said fingers at one end to their other lends ain parallelism. with t e'surface of said form, and means-of lip-5' portingfor. reciprobation' and notation 'pivotally each of said fingers Iintet mediatelthe end and the guiding end thereof. "7. In combination,.a tapered .guidjngihead, aplurality of "pivoted adaptedto more vertically with: respect thereto and to have their innerends rideithemomipressing and on thebutar ends thereof and a conical form ofcsimilar angularity overiwhibh said finger-S mone. .3 18; In gcoinbination, a ta redl guiding head, a plurality of pivotedngers' adapte' to move, vertically with respectktheraao to have their inner ends ride thereompressing and forming tools on the outer ends and atconicallform of similar angularity over which said .1 fingers move, tmaa'ns a: re-

' ciprdcate said fingers and meansto rotate said reciprocating and guiding :In combinatmma stationary support ng track, a rotating guiding heulzlrotatmg,

therein, a reciprocatlnf and rotating tool head rotatin said guii roosting wit respect thereto ,extending im ternally thereofto a point belowythegniding head,- a pluralityfof tool arms mounted ion ng head and recip said tool head ivoted below said guidi head and extending over said guiding hea means on said arms engaging said guidin head, andfmeans onthe lower ends of sai arms forengagingfforming and extruding a sheet ofkmetatwhe by mid erm; at the 10m ende are gaid fia ia path asdeterby the configuration of the guiding ea.-y t,

1031a,?combinati n, externally ran ed sup grt hal'rin a'traclllcdadcgnical ded pa 1 t m ,ea ,sus e rom an romtaiie" in saiiiv "track," sa fd' iding head having a,guiding: gaasagleway t erein, a tool 'head reciprocating wit in said guide passageway-, means for rotating and reciprocating said tool head, :rnaans on i said tool head for pivotdlly slifzfim'ting a plurality ofvdiag nanidonw means on one end thereof iorengaging said guiding head whereby as said itool :head

seend's thelowerlends of said tool annuwilldiverge in planesucarresponding to the sun faces of. the guiding head/sen aged bg ab pp ends (lithe mums; fi

rangedsupport having a track, a conical de pending gniding head suspended'from and rotatable in said tra'ck, said guiding-mead low and'falong and guiding head har ing meanson one end thereof -for enga 'ng said guiding head-whereby as'said i ead deseendsthe lowerends ofsaid todl arm will diverge in planes corresponding t0.-the surfaces Offth uidinghead engaged by the upper endso 'the toolanngand means for maintaining said tool arms in engagement with-saidguiding'head.' a

12. In combination a head, means to reeiprocateaand rotate a plurality ofoonverging tool arms pivotally'mounted thereon, and

ofthetdolera'aashn 'soguid'e said too arms that as they descend and notatetheir lower converging endsfwill bemoved apart. I testimon whereotgl afiix-m signature. THEODORE M; H ESTER.

g yieltending tool arms'be-. low and atloligsaidfgilidhg head hav ng aguide head'to en agethedivergin ends 

